Hi Peter, What is the default value for the filter? I found that a value of 1 nearly sorted the problem. A value of 2 was pretty well rock solid. Just to be sure I set it to 6 as my max frequency is well under 200kHz.
I guess it is already on your to-do list but I would guess that it would be well worth adding this as a parameter with a recommendation in your docs to set it for as low a frequency as practical. Thanks, Les > Well if the extra filtering of the TTL inputs helps, I would do the trick > with > raw-write to setup the filter time constant (the QFilterRate register at > 0x3400). Currently the filter frequency is 33 MHZ which gives a 450 ns time > constant: good for encoder count rates up to ~4 MHz, if the filter was set to > divide by 8 (loaded with 6) you could still count up to 500 KHz but reject > pulses up to 4 uSec long. You can divide the 33 MHz by up to 2049 (which > _will_ be too slow, limiting your count rate to ~2KHz (filter on) or 10KHz > (filter off) > ------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
